Loran-A locator

简明释义

罗兰-A定位

英英释义

例句

1.The Loran-A locator helps fishermen find the best spots in the ocean.

这个Loran-A定位器帮助渔民找到海洋中最好的捕鱼地点。

2.The Loran-A locator provides a reliable signal for marine navigation.

这个Loran-A定位器为海洋导航提供可靠的信号。

3.Using a Loran-A locator, the pilot navigated through the foggy weather.

飞行员利用Loran-A定位器在雾天中导航。

4.The ship's navigation system relies on the Loran-A locator to accurately determine its position.

这艘船的导航系统依赖于Loran-A定位器来准确确定其位置。

5.During the sailing competition, the crew used a Loran-A locator to ensure they stayed on course.

在帆船比赛中，船员们使用了Loran-A定位器以确保他们保持航向。

作文

The world of navigation has evolved significantly over the years, with various technologies emerging to help us find our way. One such technology is the Loran-A locator, which played a crucial role in maritime and aerial navigation during the mid-20th century. Understanding the Loran-A locator requires a brief exploration of its history, functionality, and impact on navigation systems.The Loran-A locator was developed during World War II as a means of improving the accuracy of positioning for ships and aircraft. Before the advent of this technology, navigators relied heavily on celestial navigation, dead reckoning, and radio direction-finding, all of which had their limitations. The introduction of the Loran-A locator provided a more reliable method for determining one's location, especially in poor weather conditions or at night when celestial navigation was not possible.The term 'Loran' stands for 'Long Range Navigation.' The Loran-A locator system works by transmitting signals from a network of ground-based radio transmitters. These transmitters emit low-frequency radio waves that travel at the speed of light. A receiver on a ship or an aircraft picks up these signals and calculates its position based on the time it takes for the signals to arrive from multiple transmitters. This triangulation process allows for accurate positioning, typically within a few hundred meters.The Loran-A locator was particularly beneficial for naval operations, as it allowed vessels to navigate safely through treacherous waters. It also aided in search and rescue missions, enabling rescuers to locate distressed vessels more efficiently. The system was widely adopted by both military and commercial entities, and it significantly improved the safety and efficiency of maritime operations.However, as technology continued to advance, the Loran-A locator began to be overshadowed by newer systems such as GPS (Global Positioning System). GPS offered even greater accuracy and global coverage, making it the preferred choice for navigation in the late 20th century. Despite this, the Loran-A locator laid the groundwork for future navigation technologies and remains a significant milestone in the history of navigation.In conclusion, the Loran-A locator represents a pivotal development in the field of navigation. Its ability to enhance positioning accuracy revolutionized how ships and aircraft navigated, contributing to safer journeys across oceans and skies. While modern technologies like GPS have taken precedence, the legacy of the Loran-A locator endures, reminding us of the continuous evolution of navigation systems that keep us connected and safe in an ever-changing world.

导航的世界在过去几十年中发生了显著变化，各种技术应运而生，帮助我们找到方向。其中一种技术是Loran-A定位器，它在20世纪中叶的海洋和航空导航中发挥了至关重要的作用。理解Loran-A定位器需要简要探讨其历史、功能和对导航系统的影响。Loran-A定位器是在第二次世界大战期间开发的，旨在提高船舶和飞机定位的准确性。在这种技术出现之前，导航员主要依赖天文导航、航程推算和无线电方向寻找，这些方法都有其局限性。Loran-A定位器的引入提供了一种更可靠的方法来确定位置，尤其是在恶劣天气条件或夜间无法进行天文导航时。“Loran”一词代表“远程导航”。Loran-A定位器系统通过从一组地面无线电发射器发射信号来工作。这些发射器发出低频无线电波，以光速传播。船舶或飞机上的接收器接收这些信号，并根据来自多个发射器的信号到达所需时间计算其位置。这种三角测量过程允许精确定位，通常误差在几百米以内。Loran-A定位器对海军行动特别有益，因为它使船只能够安全地穿越危险水域。它还帮助搜索和救援任务，使救援人员能够更有效地定位遇险船只。该系统被军事和商业实体广泛采用，显著提高了海洋作业的安全性和效率。然而，随着技术的不断进步，Loran-A定位器开始被更新的系统如GPS（全球定位系统）所取代。GPS提供了更高的准确性和全球覆盖范围，使其成为20世纪后期导航的首选。尽管如此，Loran-A定位器为未来的导航技术奠定了基础，并仍然是导航历史上的重要里程碑。总之，Loran-A定位器代表了导航领域的一个关键发展。它提高定位准确性的能力彻底改变了船舶和飞机的导航方式，为跨越海洋和天空的安全航行做出了贡献。虽然现代技术如GPS已经占据主导地位，但Loran-A定位器的遗产依然存在，提醒我们在不断变化的世界中，导航系统的持续演变使我们保持联系并确保安全。